Malicious PDF — malware analysis report

Static analysis result for SHA-256 3adf757ee3efe816…

MALICIOUS

PDF

41.0 KB Created: 2020-04-14 04:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2972a81e9b369b6eac16f40af5311b9b SHA-1: f354f0bfa8f66d9b3bc6003630c26ffcecdf7a7e SHA-256: 3adf757ee3efe816162e5ef38f44e9e7556dc4686a9dd62e52ea159582f73ce9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar domains. One specific URL, http://rauldelacruzlinacero.com/uploads/1/3/0/5/130590322/130590322.html#game+warship+battle+mod, is embedded in the document body and suggests a lure related to a game. This indicates a likely link farm or phishing strategy designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://rauldelacruzlinacero.com/uploads/1/3/0/5/130590322/130590322.html#game+warship+battle+mod
    • http://rockwoodreadings.com/uploads/1/3/1/4/131453679/wukameniragig.pdf
    • http://lgbtq-kc.net/uploads/1/3/0/6/130604061/edfb24b391b271.pdf
    • http://martinhaycompany.com/uploads/1/3/0/7/130738714/0cea9029026c9.pdf
    • http://blunderroadcountrymarkets.com/uploads/1/3/1/3/131383928/xadim.pdf
    • http://red-zeppelin.com/uploads/1/3/0/6/130639714/8fe4724f8.pdf
    • http://starlightdancecamp.net/uploads/1/3/1/4/131437341/5814690.pdf
    • http://databaseperformancetuningasaservice.com/uploads/1/3/0/5/130542912/tolit.pdf
    • http://foresttherapynyc.com/uploads/1/3/1/3/131380756/4928900.pdf
    • http://urbansoundblog.com/uploads/1/3/0/2/130272985/ba756266b7f3b99.pdf
    • http://myindependentkids.com/uploads/1/3/0/8/130814341/8799351.pdf
    • http://kaylebrollins.com/uploads/1/3/0/4/130476598/luvodanego-wezorapavemo-vuwemo.pdf
    • http://apexppt.com/uploads/1/3/1/3/131381088/zufejezetixuk.pdf
    • http://corklockandsafe.ie/uploads/1/3/0/6/130620417/63ba17423.pdf
    • http://germane2germaine.org/uploads/1/3/0/9/130969879/wibox.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e70.bin
64ff67d5296baceae0982c7558cfa7234aee9e12b999d2f12c957e9833f1ec01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E70 8268 bytes
font_01_sfnt_off00008e44.bin
a1e76a4a33fd00720c09c3f73c1e3f7c07e19629020bd456517facccced73307		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E44 1872 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.